Hi,

I have a 4013 CMOS
I connect every pin to ground except the outputs and the VCC

I test the outputs, why is the complimentary output 0 and the normal input 1, reset , set, data and clock are low!
ARRGGGG!!!

Also, can you damage CMOS chips by leaving pins floating?

 

Hi,

I have a 4013 CMOS
I connect every pin to ground except the outputs and the VCC

I test the outputs, why is the complimentary output 0 and the normal input 1, reset , set, data and clock are low!
ARRGGGG!!!

Also, can you damage CMOS chips by leaving pins floating?

Set it up in a functioning circuit then it will work.

Don't leave CMOS pins floating.

Why don't you read up on CMOS logic chips before you go putting power to them? What's the point?

 

Never leave CMOS unused inputs floating and always leave an unused output

 

I use CMOS often its just that for some reason my 4013's first output is one when it should be 0. Thats all
I know not to leave pins floating, i was just curious thats all!

 

If you are sure then u have faulty device

 

Hello,

If you want good advice, post a schematic.
That way we can see if there is anything wrong.

You can also read the CMOSIntro PDF (attached).
It gives you information on input / output levels and loads.

Bertus

 

It sounds normal to me. With all inputs grounded, the output can come up in either state when power is turned on, and will not change until the clock input changes from low to high (with a risetime less than the tRCL spec), or you assert either SET or RESET.

 

It sounds normal to me. With all inputs grounded, the output can come up in either state when power is turned on, and will not change until the clock input changes from low to high (with a risetime less than the tRCL spec), or you assert either SET or RESET.

ARE YOU SERIOUS!!!!
This is just perfect! Now i have to make sure that when power is connected, all the 4013 resets are set high!

What a silly chup, but THANK GOD its not broken

 

Now i have to make sure that when power is connected, all the 4013 resets are set high!

All you have to do is to put simply RC network typical 100K and 100nF.
See C2 and R5

What a silly chup, but THANK GOD its not broken

Almost all chip need proper reset in start-up.